Proxies

[freesoft_2000]

Hi everyone,

If i were to set the http proxy for a particular url i did this

Properties systemProperties = System.getProperties();
systemProperties.setProperty("http.proxyHost", proxy);
systemProperties.setProperty("http.proxyPort", port);

Is the way that i did the best way to do it and am i doing it correctly??

Richard West

 

[Hemal Pandya]

Hi everyone,

If i were to set the http proxy for a particular url i did this

Properties systemProperties = System.getProperties();
systemProperties.setProperty("http.proxyHost", proxy);
systemProperties.setProperty("http.proxyPort", port);

Is the way that i did the best way to do it and am i doing it correctly??

Depends on who is going to use the proxy value. If it is some API that
looks for the proxy settings in the system properties then this is the
right way to do it. If the API is not going to look in system
properties then this is useless.

 

[Esmond Pitt]

Depends on who is going to use the proxy value. If it is some API that
looks for the proxy settings in the system properties then this is the
right way to do it. If the API is not going to look in system
properties then this is useless.

If you don't know the answer please don't just create noise.

As the API concerned is the Java Development Kit, specifically
java.net.HttpURLConnection and the sun.* classes it uses, this way of
doing it is correct.

 

[freesoft_2000]

Hi Everyone,

esmond tahnks for your reply but i have one more question in
that if my proxy requires a username and password i do this

System.setProperty("http.proxyUser","user");
System.setProperty("http.proxyPassword","password");

Is the way that i did the best way to do it and am i doing it correctly??

Another thing i have to ask you is that proxy authentication, is the same
as web page authentication??

Richard West

 

[Esmond Pitt]

if my proxy requires a username and password i do this

System.setProperty("http.proxyUser","user");
System.setProperty("http.proxyPassword","password");

I am not aware of these properties. AFAIK you have to use a
java.net.Authenticator.

Another thing i have to ask you is that proxy authentication, is the same
as web page authentication??

Well, there are two values for Authenticator.RequestorType, so there is
a difference.

 

[freesoft_2000]

Hi everyone,

Thanks for answering to my reply Esmond. I read up on the
Authenticator class and now know how to use it but i have one more
question.

Can the Authenticator class also be use to access a password
protected https or ftp site or is the Java Authenticator class only meant
for http internet protocol only.

If it can access more than http have you done it before and
did it work??

I know these may seem like basic questions to you but
please bear with me.

Hoping to hear from you

Yours Sincerely

Richard West

 

[Esmond Pitt]

Thanks for answering to my reply Esmond. I read up on the
Authenticator class and now know how to use it but i have one more
question.

Can the Authenticator class also be use to access a password
protected https or ftp site or is the Java Authenticator class only meant
for http internet protocol only.

HTTP or HTTPS, proxy or server.

If it can access more than http have you done it before and
did it work??

Probably at some point, I can't remember for sure.

 

[freesoft_2000]

Hi everyone,

Sorry Esmond but going back to the proxy story in my first
post i did something like that

Properties systemProperties = System.getProperties();
systemProperties.setProperty("ftp.proxyHost", proxy);
systemProperties.setProperty("ftp.proxyPort", port);

but i notice that in one wesite that i have read some people did it like
this

Properties systemProperties = System.getProperties();
systemProperties.setProperty("ftpproxyHost", proxy);
systemProperties.setProperty("ftpproxyPort", port);

Are both versions correct??
If not which is the correct version and which one do you normally use??

Richard West

 

[Esmond Pitt]

Hi everyone,

Sorry Esmond but going back to the proxy story in my first
post i did something like that

Properties systemProperties = System.getProperties();
systemProperties.setProperty("ftp.proxyHost", proxy);
systemProperties.setProperty("ftp.proxyPort", port);

but i notice that in one wesite that i have read some people did it like
this

Properties systemProperties = System.getProperties();
systemProperties.setProperty("ftpproxyHost", proxy);
systemProperties.setProperty("ftpproxyPort", port);

Are both versions correct??
If not which is the correct version and which one do you normally use??

There are some old system properties e.g. proxyHost/proxyPort which are
still supported because their existence 'leaked' (from the HotJava
Bean), and there is also proxySet which people are still coding into
applications even though it has made no difference for about seven
years. Use the http.* and ftp.* ones.

EJP